Screw removal tool

Abstract

A screw removal tool may include a tool body, a driving unit and a tool tip, wherein the tool body has a hexagonal shaft, which is connected to a cylindrical pin at a driving end, and the cylindrical pin is connected to a block, and the pin and the block are arranged in an eccentric manner at the driving end; and wherein the driving unit has an eccentric connecting hole that mates with the cylindrical pin of the tool body and the driving unit can be rotated; wherein the tool tip has an eccentric hole that mates with the block, and pressure is applied on the block to prevent the tool tip from falling out.

What is claimed is: 
     
       1. A screw removal tool comprising a tool body, a driving unit, and a tool tip,
 wherein the tool body has a hexagonal shaft with six engaging faces, and is connected to a cylindrical pin at a driving end thereof, and the cylindrical pin is connected to a block, the pin and the block arranged in an eccentric manner at the driving end; 
 wherein the driving unit has a first face, a second face, six side faces, and a connecting hole that mates with the pin of the tool body and is eccentrically formed on the first face toward the second face, and by rotating the driving unit, the side faces of the driving unit and the engaging faces of the shaft are configured to be aligned or unaligned; 
 wherein the tool tip has a has a first face, a second face, six peripheral sides, and an engaging hole that mates with the block at the driving end and is eccentrically formed on the first face toward the second face, and pressure is applied on the block to further prevent the tool tip from falling out, and the block and the engaging hole are both arranged in an eccentric manner so that when the tool tip is secured on the tool body, the peripheral sides of the tool tip are aligned with the engaging faces of the tool body and wherein the driving unit has a dented abutting part on the first face that is inwardly inclined toward the connecting hole. 
 
     
     
       2. The screw removal tool of  claim 1 , wherein the tool body is used in conjunction with a socket. 
     
     
       3. The screw removal tool of  claim 1 , wherein the shaft is configured to be bent to an L-shaped object. 
     
     
       4. The screw removal tool of  claim 1 , wherein the shaft is configured to work in conjunction with electric tools. 
     
     
       5. The screw removal tool of  claim 1 , wherein the shaft is configured to work in conjunction with socket spanners.